Stovepipe.



IIN STATES PATENT OFFIQE.

EDWIN U. PHILLIPS, OF PORTLAND, OREGON, ASSIGNOR OF ONE-HALF TO FRANCIS J. MCHENRY.

STOVEPIPE.

To all whom it may concern:

Be it known that I, EDWIN U. PHILLrrs, residing at Portland, in the county of Multnomah, State of Oregon, have invented a Stovepipe, of which the following is a specititration.

My invention relates to certain new and useful improvements in stove pipes and the like, and in its generic nature the invention i embodies a stove pipe formed of a cylindrical member having provisions whereby its diameter may be increased or decreased to enable the pipe to be used with chimneys and stoves of different sizes and to enable tight connections to be made between the several joints of the pipe.

More specifically my invention embodies those novel details of construction, combi nation and arrangement of parts, all of which will be first described in detail and then be speciiically pointed out in the appended claims, reference being had to the accompanying drawings, in which:-

Figure 1, is a perspective vieri.' o1n several sections of a stove pipe embodying my invention. Fig. 2, is a cross section on the line 2 2 of Fig. 1. on the line 3 3 of Fig. 1. e, is a development of my improved pipe showing the same being bent into form, parts being broken away on the line c and the trio sections of the Afigure should be read with the lines a-) together. Figs. 5, 6 and 7, are detail views on the line 5-5 of Fig. 1, illustrating the manner in which my improved pipe can be varied in diameter.

Referring now to the accompanying drawings, in -which like numerals of reference indicate like parts in all of the figures, 1 designates my improved stove pipe `which is oonstructed of sheet metal and is provided with the usual corrugated end 1 a having the beaded portion lb adjacent thereto.

2 designates an extension of the pipe sheet which is formed without the bead 1b and `with the corrugations 1a and is rovided with a series of stamped lugs 2a spaced at intervals apart. The extension 2 merges with a further extension or projection 3 that is bent back upon itself as at 4, to provide a lap joint member to receive the free end 1a of the pipe.

In assembling` my improved pipe the free end 1X ofthe sheet is inserted into the pocket formed by the lap members 3 and 4 and en- Specrcaton of Letters Patent.

Application filed July 28, 1908.

Fig. 3, is a detail section Patented March 9, 1909.

Serial No. 445,811.

gages one of the lugs 2a to hold it at its proper diameter at the corrugated end. The next pipe section has its corrugated end fitted into the uncorrugated end ot' the next adjacent pipe, which uncorrugated end is drawn tight around the corrugated end ofthe next pipe, by means of the strap 5 which passes through the slots 5x oi the pipe section and may be bent over as at 5y to securely hold the pipe around the corrugated end of the next pipe section, as shown in Fig. 2 of the drawings. The projecting portions 3-4 of the pipe are made of less length than the full length of the pipe section so as to permit insertion ofthe corrugated end ofthe next pipe section in such manner that it may be readily clamped to the next adjacent pipe section.

From the foregoing it will be seen that by the use of my improved pipe, a pipe of variable diameter may be had and my improved construction of pipe need not only be formed of my improved sections, as shown in the drawings, but the pipe may be used in con nection with the ordinary types ot stove pipes since the corrugated end may be varied in diameter to tit into a smaller or larger pipe, as conditions may arise.

From the foregoing description taken in connection with the accompanying drawings, it is thought the complete construction, operation and advantages of my invention may be readily understood by those skilled in the art to which the invention appertains.

I/Vhat I claim is:

1. A stove pipe section, comprising an elongated sheet metal member adapted to be bent into tubular form and having a straight edge and having a projection along one edge bent back upon itself to iorm a pocket to receive the o posite straight edge of the sheet metal mem er, said bent back projection being of less length than the pipe section, a series of lugs stamped near one end of said section beyond the bent back projecting edge to form stops against which said straight edge abuts said lugs lying in a plane at right angles to the axis of the stove pipe section when bent into tubular form,

and means at the other end of the sheet metal section beyond the bent back projection to hold the section in its tubular form.

2. A stove pipe section, comprising an elongated sheet metal member adapted to be bent into tubular form and having a straight straight edge abuts said lugs lying in a plane edge and having a projection along one edge beyond the bent back projection to hold the bent back upon itself to form a pocket to resection in its tubular form, said lest named ceive the op Osite straight edge of the sheet metal mein er, said bent back projection the edge of seidsheet nietalinernberadjacent being of less length than the pipe section, e to said bent beck projection7 said sheet rnetal series of lugs stamped near one end of seid member having slits through which said section beyond the bent back projecting strep is adapted to pass to hold the section in edge to form stops against which seid its tubular forni.

EDY/'VIN U. PHLLIPS.

at right angles to the axis of the stove pipe j Witnesses: section when bent into tubular form, Ineens A, T. LEWIS,

et the other end of the sheet metal section CHESTER A. SHEPPARD.

ineens comprising a tongue projecting from "4 

